Unprofessional approach

On the 07/09/15, I went to the above mentioned restaurant to make a booking for 10 people for the 11/09/2015. On arrival I was confronted by a staff member, I requested a booking but was turned down because my booking was over the weekend, prior to my booking, i was told by a waiter that i just have to make the booking 2/3 days before the time to avoid disappointment, I asked for the manager who had a arrogant approach and also declined my request because it was Friday which falls over a weekend, i then suggested to make a deposit of R1000 and then requested for seating inside of the restaurant and then the arrogant manager told me he cannot guarantee after taking my deposit. My wife then questioned his decision and he in returned threatened to give back my deposit if we had an issue with the seating request. I made a deposit which i feel i have the right to request seating of my choice as i am a loyal customer to this restaurant brand and i never thought that i would get such attitude from the restaurant. Very disappointed and will in future not support the restaurant after my function 11/09/215.